EP0346468A1 - Installation for gasothermal coating of parts - Google Patents

Abstract

The installation includes a chamber (1) with a fixed headstock and a movable headstock (3, 5). The fixed headstock (3) is provided with a rotary drive mechanism (4), while the movable headstock (5) is mounted so as to move in the longitudinal direction along a guide (7). The installation further comprises a bar (16) comprising a sprayer (17), and mounted so as to be moved in the transverse direction by means of a drive mechanism (19), along guides (18) fixed on a carriage (13) mounted so as to be moved in the longitudinal direction, by means of a drive mechanism (14) along a guide (15). Mounted on the guide (7) provided with a window (23) is a table (20) with dimensions smaller than those of the window (23). The rear wall (11) of the chamber (1) has a longitudinal slot (40), while the chamber (1) comprises a flap (41) mounted movable in the longitudinal direction, and interacting with a hollow pusher (43) mounted on the carriage (13), and in which the bar (16) is placed. The drive mechanisms (14 and 19) are placed on the outside of the rear wall (11) of the chamber (1).

Description

Technical field

The present invention relates to the technique for applying gas-thermal coatings to workpieces by atomization, and in particular relates to a system for applying gas-thermal coatings to workpieces.

Underlying state of the art

A system for applying gas-thermal coatings to workpieces of the rotary body type is known / Rotomat, Switzerland, Modular equipment for automatic coating /. The system contains a headstock, which is provided with a drive for rotating the workpiece, and a tailstock with a common tip axis. The tailstock is arranged to be longitudinally movable on a guide. A slide is arranged on the same guide, which can perform reciprocating longitudinal movements.

The system also contains a rod with an atomizer attached to it, which rod is arranged so as to be movable transversely in guides attached to the slide. The rod is provided with a tensioner with which the transverse position of the rod is fixed relative to the tip axis. The workpiece of the rotary body type is received in the headstock and tailstock.
When picking up the workpiece, the tailstock is moved in the longitudinal direction and brought up to the end face of the workpiece. After the workpiece has been picked up, the rod is moved in the transverse direction with the atomizer and brought into a position which is dependent on the diameter of the workpiece and the distance, specified by technology, between the atomizer and the surface of the workpiece. The position of the rod is fixed using the tensioner. It becomes the drive switched on for the rotational movement of the workpiece, and the slide executes reciprocating longitudinal movements, the number of which is specified by the technology. Since the rod is fixed in its transverse position with the atomizer, the coatings are only applied to cylindrical workpieces. When the coating is applied, some of the powdery material to be atomized gets onto the guides of the tailstock, which makes its movement in the guide difficult and causes premature wear of the guide.

A system for applying gas-thermal coatings to workpieces (PLASMA-TECHNIK AG, Switzerland, wave spray bench type WSP with soundproof hood) is known, which has a chamber, coaxially arranged in the chamber: a headstock, which is provided with a drive for rotary movement, and contains a tailstock with a guide which is arranged longitudinally movable in this guide. The system also includes a carriage with a drive and a guide, the carriage being arranged so that it can make reciprocating longitudinal movements over the guide, as well as a rod with an atomizer attached to it, which is movable transversely in the attached to the carriage Guides is arranged. The guidance of the tailstock, the guidance of the carriage and the drive for the longitudinal movement of the carriage are accommodated in the chamber, the guidance of the tailstock being located below the atomizer. With the chamber doors open, the workpiece of the rotary body type is held in the headstock and tailstock. The rod with the atomizer is moved transversely and brought into a position that depends on the diameter of the workpiece and the distance between the atomizer and the surface of the workpiece, which is specified by technology. The doors of the chamber are closed and the chamber is closed Drive for rotary movement of the workpiece switched on. In the atomizer, the coating com Components supplied, and the carriage executes reciprocating longitudinal movements, the number of which is determined by the technology. When applying a coating to a cylindrical workpiece of a constant diameter, the rod with the atomizer remains unchangeable in its transverse position during the entire time of atomization. When applying a coating to a workpiece with a variable diameter, the rod is combined with the atomizer in the transverse direction by a predetermined size, which is the same as the difference in radius.

The system is designed for the application of coatings to cylindrical workpieces of a small diameter, which consequently have a small coating area, therefore the time of continuous operation of the atomizer and the operating time of the drives of the system are of a short duration. The work of the drives and the guides in the zone of high temperature and a high dust content accumulating during the operation of the atomizer within a short time practically does not affect the operability of the drives.

The construction of the known system does not allow coatings to be applied to flat workpieces because additional coatings of the atomizer and the fastening of the flat workpiece in the chamber are required when applying coatings to such workpieces. The application of coatings to flat workpieces that have substantially large surfaces also requires an increase in the time of continuous operation of the atomizer, which affects the operability and life of the drives and guides, which are prolonged in the higher zone Temperature and a high dust content are negative effects. The arrangement of the guide of the tailstock below the atomizer helps to ensure that the powdery material of the coating reaches the guide, whereby the movement of the tailstock in this guide is prevented and the wear resistance thereof is reduced.

Disclosure of the invention

The present invention has for its object to provide a system for applying gas-thermal coatings on workpieces, the technical design of which makes it possible to carry out reciprocating movements of the atomizer in the longitudinal and transverse directions simultaneously, to fix flat workpieces in the chamber and conditions ensure for a longer operation of the system, which can expand the technological possibilities of the system and increase its reliability.

The object is achieved in that a system for applying gas-thermal coatings to workpieces, containing a box-shaped chamber, is arranged coaxially in the chamber: a headstock, which is provided with a drive for rotary movement, and a tailstock with a guide, the longitudinal movements can execute relative to the workpiece in this guide, a slide with a drive and a guide that can perform reciprocating longitudinal movements relative to the workpiece in the guide, a rod with an atomizer attached to it, the transverse movements relative to the slide attached guides can perform to the workpiece, according to the invention a table which is fastened to the guide of the tailstock, in which an opening is provided with the dimensions exceeding the cross-sectional dimensions of the table, a drive for the reciprocating transverse movement of the rod relative to the workpiece and one with said Kinematic drive includes connected means for changing the piston stroke size, wherein the rear wall of the chamber has a longitudinal slot, and the chamber is provided with a flap which is arranged so that it can perform longitudinal movements relative to the workpiece and interacts with a hollow plunger which is attached to the slide and in which the rod is accommodated, and also the drive of the slide and the drive for the reciprocating transverse movement of the rod and the guides of the Carriage and the rod are arranged on the outside of the rear wall of the chamber.

It is expedient that the drive for the reciprocating transverse movement of the rod is in the form of a curve and a two-armed lever, in which one arm is connected to the curve and the other arm to the rod.

It is preferable that the device for changing the rod stroke size has two sliders which are slidably arranged in grooves, one of which is in the slide and the other in the two-armed lever of the drive for the reciprocating transverse movement of the rod, and one contains articulated bolts arranged in the sliding pieces.

It is necessary that the length and the width of the table have dimensions that exceed the dimensions of the surfaces of the guide of the tailstock that interact with the tailstock.

To apply the coatings to workpieces of the rotary body type, which have a shape deviating from the cylinder, it is necessary that the profile of the curve of the drive for the reciprocating transverse movement of the rod corresponds to the profile of the surface of the workpiece to which the coating is applied becomes.

The system according to the invention makes it possible to apply coatings to workpieces of the flat type, of the rotary body type, which have a cylindrical shape or a shape deviating from the cylinder.

Brief description of the drawings

• Fig. 1 - die Gesamtansicht einer erfindungsgemäßen Anlage zum Auftragen von gasthermischen Überzügen auf Werkstücke in Frontansicht;
• Fig. 2 - die Gesamtansicht einer erfindungsgemäßen Anlage mit der abgehobenen Kammer in Draufsicht;
• Fig. 3 - eine Schnitt nach Linie III-III in Fig. 1, gemäß der Erfindung;
• Fig. 4 - den Schnitt nach der Linie IV-IV in Fig. 2, gemäß der Erfindung;
• Fig. 5 - die Konstruktion des Antriebes zur hin-her­gehenden Querbewegung der Stange, gemäß der Erfindung;
• Fig. 6 - den Schnitt nach der Linie VI-VI in Fig. 5, gemäß der Erfindung;
• Fig. 7 - die schematische Darstellung einer erfin­dungsgemäßen Anlage beim Auftragen eines Überzugs auf ein Werkstück vom Typ Rotationskörper, das eine vom Zylinder abweichende Form aufweist;
• Fig. 8 - einen teilweisen Querschnitt durch die hin­tere Wand der Kammer, gemäß der Erfindung;
• Fig. 9 - die teilweise Hinteransicht der hinteren Wand der Kammer, gemäß der Erfindung;
• Fig. 10 - in schematischer Darstellung die Anordnung des Zerstäubers an der Stange, gemäß der Erfindung.

The present invention is described below on the basis of a specific exemplary embodiment of the invention and of the accompanying drawings. Show it:

• Fig. 1 - the overall view of a system according to the invention for applying gas-thermal coatings on workpieces in a front view;
• Fig. 2 - the overall view of a system according to the invention with the lifted chamber in plan view;
• Fig. 3 - a section along line III-III in Fig. 1, according to the invention;
• Figure 4 - the section along the line IV-IV in Figure 2, according to the invention.
• Fig. 5 - the construction of the drive for reciprocating transverse movement of the rod, according to the invention;
• Figure 6 - the section along the line VI-VI in Figure 5, according to the invention.
• 7 - the schematic representation of a system according to the invention when applying a coating to a workpiece of the rotary body type, which has a shape deviating from the cylinder;
• Fig. 8 - a partial cross-section through the rear wall of the chamber, according to the invention;
• Fig. 9 - the partial rear view of the rear wall of the chamber, according to the invention;
• Fig. 10 - a schematic representation of the arrangement of the atomizer on the rod, according to the invention.

Preferred embodiment variant of the invention

The system for applying gas-thermal coatings to workpieces contains a box-shaped chamber 1 (FIG. 1), which is fastened on a base plate 2, arranged in the chamber: a headstock 3, which is provided with a drive 4 for rotary movement, and a tailstock 5 with a common axis 6 of the tips. The tailstock 5 is arranged on a guide 7 so that it can perform longitudinal movements and can be fixed in the longitudinal position (the lock is not shown in the drawings). On the headstock 3 is a chuck 8 for clamping a workpiece 9 of the rotary body type with the axis 6 and on the tailstock 5 - a rotating tip 10 is arranged. The chamber 1 contains a rear wall 11 and sliding doors 12 arranged in the front part thereof.

The system also contains a slide 13 (FIG. 2) with a drive 14 for the reciprocating longitudinal movement of the workpiece 9 in a guide 15. A rod 16 with an atomizer 17 arranged thereon is attached to the slide 13. The rod 16 is arranged in guides 18 fastened to the slide 13 in such a way that it can carry out reciprocating transverse movements relative to the workpiece 9 by means of a drive 19. The drives 14 and 9 and the guides 15 and 18 are arranged on the outside of the rear wall 11 of the chamber 1 (Fig. 3). A table 20 (FIG. 4) for receiving a flat workpiece 21 is fastened to the guide 7. The length and the width of the table 20 exceed the corresponding dimensions of the surfaces 22 of the guide 7, which interact with the tailstock 5. The tailstock 5 has an opening 23, the dimensions of which exceed the dimensions of the cross section of the table 20.

The drive 19 (Fig. 5) for the reciprocating transverse movement of the rod 16 is in the form of a curve 24 which is fixed to a drive shaft 25 and a two-armed lever 26 (Fig. 5, 6), the arm 27 by means of a roller 28 is connected to the curve 24, while the arm 29 is connected to the rod 16 by means of a joint 30. A groove 31 is embodied in the slide 13 and a longitudinal groove 32 is provided in the lever 26. In the grooves 31 and 32 there are sliders 33, 34 of the devices for changing the stroke size of the rod 16. The sliders 33 and 34 are arranged so that they carry out adjustment displacements in the grooves 31 and 32 and can be fixed in their positions (the Findings are not shown in the drawings). In the sliders 33 and 34 is a hinge pin zen 35 arranged.

It is provided that an interchangeable curve 36 (FIG. 7) and an interchangeable two-armed lever 37, which is connected to the curve 36 and to the rod 16, are arranged in the drive 19 on the drive shaft 25. The profile of the curve 36 corresponds to the profile of the surface 38 of the workpiece 39 of the rotary body type with a shape deviating from the cylinder.

The rod 16 is guided into the chamber 1 through a slot 40 (FIG. 8) which is made in the rear wall 11 of the chamber 1 in the direction of movement of the slide 13 over the entire stroke length of the same. For thermal insulation and soundproofing of the chamber 1 from the environment, the slot 40 is closed with a band-shaped slide 41, the width of which exceeds the width of the slot 40. The slide 41 is arranged in guides 42 (FIGS. 8, 9) in such a way that it can carry out longitudinal movements and interacts with a hollow plunger 43 which is fastened to the slide 13. The rod 16 is accommodated in the hollow plunger 43 while leaving a gap. At the front end of the rod 16, a swivel bracket 45 is mounted on a joint 44 (FIG. 10), the axis of which runs parallel to the axis 6 of the tips. The atomizer 17 is arranged on the swivel bracket 45 in such a way that it can carry out adjustable vertical movements, the bracket 45 being connected to a compressed air cylinder 46 which is articulated on a bracket 47 fastened to the rod 16. Via a pneumatic distributor 48 and a relay 49, the compressed air cylinder 46 is provided with a starter 50 of the drive 4 (FIG. 1) for rotating the headstock 3, a starter 51 (FIG. 10) of the drive 14 (FIG. 2) for moving the Carriage 13 and a starter 52 (Fig. 10) of the drive 19 (Fig. 2) for moving the rod 16 connected.

The system is operated in one of two operating states, which is determined by the type of the workpiece, ie by Rotational or flat body is determined.

When a coating is applied to the workpiece 9 (FIG. 1) of the rotary body type, the system is operated as follows. Depending on the diameter of the workpiece 9, the atomizer 17 is brought into a vertical position by moving it (FIG. 10) via the bracket 45. When the workpiece 9 is fed (FIG. 1), the sliding doors 12 are pushed apart, the rod 16 (FIG. 2) with the atomizer 17 is discharged in the direction of the rear wall 11 (FIG. 1), and the atomizer 17 ( Fig. 10) with the console 45 is pivoted into an inclined rest position. The workpiece 9 (Fig. 1) is clamped in the chuck 8 of the Spindelstokkes 3 and if necessary pressed by the tip 10 of the tailstock 5. The following technological operating conditions are specified: rotation speed of the chuck 8, movement speed of the slide 13 (FIG. 2), stroke size of the slide 13, which depends on the length of the workpiece 9 (FIG. 1), and number of reciprocating movements of the slide 13. The sliding doors 12 are closed. The drive 4 is switched on for the rotary movement and the supply of the coating components into the atomizer 17 is started (FIG. 2). The atomizer 17 is removed from the rear wall 11 by means of the rod 16, being brought into the working position above the workpiece 9 (FIG. 1). At the same time, the compressed air cylinder 46 (FIG. 10) and the drive 14 (FIG. 2) are switched on. As a result, the atomizer 17 is brought into a vertical position while the carriage 13 begins to move the atomizer 17 along the workpiece 9 (FIG. 1). The application of a coating to the workpiece 9 is carried out according to a predetermined program when the workpiece 9 rotates at a predetermined speed and when the atomizer 17 (FIG. 2) moves back and forth on the upper surface line of the workpiece 9 (FIG. 1). performed along. During the movements of the carriage 13, the band-shaped slide 41 is moved in the guides 42 by the hollow plunger 43 attached to the sem (FIG. 8). In the event of unforeseen shutdowns of the drive 4 (FIG. 1) for the rotary movement or of the drive 14 (FIG. 2) for the movement of the slide 13, the starter 50 (FIG. 10) or the starter 51 is triggered, which the pneumatic distributor 48 via the Relay 49 automatically give a command to pivot atomizer 17 (FIG. 2) by means of compressed air cylinder 46 into an inclined rest position in which the coating components do not reach workpiece 9 (FIG. 1). In the event of unforeseen shutdowns of the drives 4 and 14 (FIG. 2), when the mutual movements of the atomizer 17 and the workpiece 9 (FIG. 1) are stopped, the application of a coating to the surface of the workpiece 9 is prevented. During the operation of the atomizer 17 (FIG. 2), part of the powdery material falls down. The table 20 (FIG. 4) reliably ensures that the powdery material does not get onto the surfaces 22 of the guide 7.

After the program for applying a coating to the workpiece 9 (FIG. 1) has been completed, the drives 4 and 14 (FIG. 2) are automatically switched off, the starters 50 and 51 (FIG. 10) give a command to pivot the atomizer 17 in an inclined position, the rod 16 with the atomizer 17 is discharged to the rear wall 11 (FIG. 1) of the chamber 1, the supply of the coating components is stopped, the sliding doors 12 are opened. The tailstock 5 is removed from the end face of the workpiece 9, the chuck 8 is released, and the workpiece 9 is discharged from the chamber 1.

Then the cycle is repeated.

When applying a coating to the flat type workpiece 21 (Fig. 4), the system is operated as follows. With open doors 12 (Fig. 1) the tailstock 5 brought into the right end position. The workpiece 21 (FIG. 4) is placed on the table 20 and clamped if necessary. When the workpiece 21 is fed, the rod 16 (FIG. 2) is discharged with the atomizer 17 in the direction of the rear wall 11 (FIG. 1) of the chamber 1, the slide 13 being in one of the end positions. Depending on the height of the workpiece 21 (FIG. 4), the atomizer 17 is displaced (FIG. 2) via the bracket 45 (FIG. 10) into a vertical position relative to the surface of the workpiece 21 to be dusted (FIG. 4 ) brought. Depending on the width of the workpiece 21, the stroke size during the transverse movements of the rod 16 (FIG. 2) is set with the atomizer 17. For this purpose, the sliders 33 and 34 (Fig. 6) are displaced in the grooves 31 and 32 (Fig. 5), thereby changing the ratio between the lengths of the arms 27 and 29 and consequently the stroke size of the rod 16. After the sliding pieces 33 and 34 (FIG. 6) have been displaced by the required size, their position in the grooves 31 (FIG. 5) and 32 is fixed.

The following technological operating conditions are specified: movement speed of the slide 13 (FIG. 1), stroke size of the slide 13, which is determined by the length of the workpiece 21 (FIG. 4), number of reciprocating movements of the slide 13 (FIG. 1) and speed of movement of the rod 16 (Fig. 2). The sliding doors 1 (Fig. 1) of the chamber 1 are closed. The drive 14 (FIG. 2) for moving the slide 13 and the drive 19 for moving the rod 16 are switched on. At the same time, the supply of the coating components into the atomizer 17 is switched on. The application of the coating to the workpiece 21 (Fig. 4) is carried out according to a predetermined program with reciprocating longitudinal and transverse movements of the atomizer 17 (Fig. 2) in the horizontal plane above the surface of the Workpiece 21 (Fig. 4) performed. During the movements of the rod 16 (FIG. 2), it passes freely in the transverse direction within the hollow plunger 43 (FIG. 8) and moves together with it in the longitudinal direction.

In the event of unforeseen shutdowns of the drive 14 (FIG. 2) or the drive 19, the starter 51 (FIG. 10) or the starter 52 are triggered accordingly, which, via the relay 49, gives the pneumatic distributor 48 a command to pivot the atomizer 17 by means of the Place the compressed air cylinder 46 automatically in an inclined rest position in which the coating components no longer reach the workpiece 21 (FIG. 4). After completion of the program for applying a coating to the workpiece 21, the drives 14 (Fig. 2) and 19 are automatically switched off. The atomizer 17 is stopped in the starting position, i.e. it is discharged to the rear wall 11 (FIG. 1) of the chamber 1. The supply of the coating components is stopped, the doors 12 are opened and the workpiece 21 (FIG. 4) is removed from the chamber 1 (FIG. 1). The cycle is repeated.

When applying a coating to the workpiece 39 (FIG. 7) of the rotary body type with a shape deviating from the cylinder, the system is operated as follows.

The interchangeable curve 36 is fastened to the drive shaft 25 and the two-armed lever 37 is arranged on the hinge pin 35 and is connected to the curve 36 and to the rod 16. The workpiece 39 is clamped in the chuck 8 and, if necessary, pressed by the rotating tip 10 of the tailstock 5.

By means of adjusting movements of the slide 13 (FIG. 2) and the rod 16 (FIG. 7), the atomizer 17 is brought to a predetermined distance from the surfaces 38 of the workpiece 39, which surfaces 38 have a shape that deviates from the cylinder.

The following technological operating conditions predetermined: rotation speed of the chuck 8, movement speed of the slide 13 (FIG. 2), stroke size of the slide 13, which is determined by the length of the surface 38 (FIG. 7), number of reciprocating movements of the slide 13 (FIG. 2) and the rotational speed of the curve 36 (FIG. 7), which depends on the rotational speed of the chuck 8. With the doors 12 closed (FIG. 1), the drive 4 for the rotary movement and the drive 19 (FIG. 2) for the movement of the rod 16 are switched on at the same time, after which the drive 14 for the movement of the slide 13 and the supply of the coating components into the atomizer 17 can be switched on.

The application of a coating to the surface 38 (FIG. 7), which has a shape deviating from the cylinder, is carried out according to a predetermined program during the rotational movement of the workpiece 39, with reciprocating movements of the slide 13 (FIG. 2) and with the transverse movement of the rod 16 performed. Since the profile of the curve 36 (FIG. 7) corresponds to the profile of the surface 38, the distance between the atomizer 17 and the surface 38 will remain constant during the rotational movement of the workpiece 39.

After the completion of the program for applying a coating to the workpiece 39, the drives 4 (FIG. 1) and drives 14, 19 (FIG. 2) are automatically switched off, the supply of the coating components is stopped, and with the doors 12 open (FIG. 1) the workpiece 39 (FIG. 7) is carried out. Then the cycle is repeated.

If it is necessary to use the system for processing the surface of a workpiece by means of abrasive blasting, a corresponding tool is attached to the rod 16 instead of the atomizer 17 (FIG. 2). All other technological operations are carried out as described above.

The system according to the invention allows the techno to significantly expand the logical possibilities compared to the known similar systems for applying gas-thermal coatings. The fact that a table 20 (FIG. 4) is provided in the system and the drive 19 (FIG. 2) for the transverse movement of the rod 16 with the atomizer 17 is designed in the form of a cam mechanism, it is possible to apply coatings not only to workpieces of the rotating body type, but also to be applied to workpieces of flat type. The presence of a cam mechanism also allows coatings to be applied to rotary body type workpieces which have a shape different from that of the cylinder. Such a mechanism is simpler and cheaper than the known mechanisms in which the law of motion is specified by an expensive programming device.

The fact that the drives 14, 19 and the guides 15, 18 of the carriage 13 and the rod 16 are arranged outside the chamber 1 (Fig. 1), it is possible to reduce the influence of high temperature and high dust content on their operability and wear resistance a longer operating time of the atomizer 17 (FIG. 2) required when coating large areas of flat workpieces.

The question of the passage of the rod 16 into the chamber 1 was solved favorably; this rod 16, which supports the atomizer 17, moves longitudinally and transversely within the slot 40 (FIG. 8) without impairing the thermal insulation and soundproofing of the chamber 1 (FIG. 1) from the environment. The wear resistance of the guide 7 of the tailstock 5 was increased by attaching the table 20 (FIG. 4) to it, which protects the running surfaces of the guide 7 against powdery components to be dusted. The automatic removal of the atomizer 17 from the surface to be dusted in the event of unforeseen shutdowns of any of the drives 4 (Fig. 1), 14, 19 (Fig. 2) prevents the formation of local thickenings of the coating layer on the surface to be dusted.

Industrial applicability

The invention can be used to apply all types of gas-thermal coatings to workpieces of the rotary body type and to flat workpieces. In addition, the invention can be used to pretreat the surfaces of workpieces prior to the application of coatings, e.g., in abrasive processing of surfaces.

Claims (5)

1. Plant for applying gas-thermal coatings to workpieces, comprising a box-shaped chamber (1), arranged coaxially in the chamber (1): a headstock (3) which is provided with a drive (4) for rotary movement, and a tailstock (5 ) with a guide (7), which can perform longitudinal movements relative to the workpiece (9) in this guide (7), a carriage (13) with a drive (14) and a guide (15), the reciprocating longitudinal movements relatively to the workpiece (9) in the guide (15), a rod (16) with an atomizer (17) attached to it, which can carry out transverse movements relative to the workpiece (9) in guides (18) attached to the slide (13) characterized in that it has a table (20) which is fastened to the guide (7) of the tailstock (5), in which an opening (23) with dimensions exceeding the cross-sectional dimensions of the table (20) is provided, a drive ( 19) for the reciprocating transverse movement of the rod (16) relative to the workpiece (9) and a device for changing the piston stroke size kinematically connected to said drive, wherein the rear wall (11) of the chamber (1) has a longitudinal slot (40), and the chamber (1) with a slide (41) is provided which is arranged so that it can perform longitudinal movements relative to the workpiece (9) and interacts with a hollow plunger (43) which is attached to the slide (13) and in which the rod (16 ) is housed, and also the drive (14) of the carriage (13) and the drive (19) for the reciprocating transverse movement of the rod (16) and the guides (15, 18) of the carriage (13) and the rod ( 16) are arranged on the outside of the rear wall (11) of the chamber (1). 2. Plant for the application of gas thermal coatings on workpieces according to claim 1, characterized in that the drive (9) for the reciprocating transverse movement of the rod (16) is designed in the form of a curve (24) and a two-armed lever (26), in which the one arm ( 27) are connected to the curve (24) and the other arm (29) to the rod (16). 3. System for applying gas-thermal coatings to workpieces according to claims 1 and 2, characterized in that the device for changing the rod stroke size two sliders (33, 34) which are slidably arranged in grooves (31, 32), one of which Groove (31) in the carriage (13) and the other groove (32) in the two-armed lever (26) of the drive (19) for the reciprocating transverse movement of the rod (16), and one in the sliders (33, 34th ) arranged hinge pin (35) contains. 4. System for applying gas-thermal coatings to workpieces according to claim 1, characterized in that the length and width of the table (20) have dimensions which exceed the dimensions of the surfaces (22) of the guide (7) of the tailstock (5) which interact with the tailstock (5). 5. System for applying gas-thermal coatings to workpieces according to claim 2, characterized in that the profile of the curve (36) of the drive (19) for the reciprocating transverse movement of the rod (16) the profile of the surface of the workpiece (39) corresponds to which the coating is applied.

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